1) Don't worry about the color. You can change it. You will likely change it. Throw this notion out.
2) Don't be a structural engineer. If you over-analyze every crack in the foundation - you'll imagine the worst when they could just be typical tension cracks and have nothing to do with the structure of the house. Obviously if a wall is caving in - be wary, but if it's just a crack in a basement floor - let the inspector figure it out.
3) Don't be afraid of repairs. DIY is the new thing and these projects can be fun. If it needs a contractor, now is probably one of the better times to hire one. Labor is cheap and contractors are hungry.
1) Look for a general layout. Many get caught up in the minor details without realizing the layout is not right. Stop looking at the condition of the carpet or tile and look at the layout of the kitchen/living space. Does it blend right?
2) Be picky about the location. If there is a certain neighborhood or area you like, don't just settle for an area you don't. Wait around or find a place you can change to appease you. Remember it is always Location, Location, Location.
3) Make estimates for minor repairs. New Carpet and Paint does add up - so make sure you put this in your budget. If you move into a house you can't make a home, you've done nothing for your general happiness.